Home / 123,470.37-170,397.68-69,735.78

Finding the Fourth Proportional to 123,470.37, 170,397.68 and 69,735.78

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Solution

The fourth proportional to 123,470.37, 170,397.68 and 69,735.78 is: 96,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,470.37 : 170,397.68 = 69,735.78 : x
  2. Step 2: Convert to fraction form
    123,470.37/170,397.68 = 69,735.78/x
  3. Step 3: Cross multiply
    123,470.37x = 170,397.68 × 69,735.78
  4. Step 4: Simplify right side
    123,470.37x = 11,882,814,776.31
  5. Step 5: Solve for x
    x = 11,882,814,776.31/123,470.37
  6. Step 6: Final answer
    x = 96,240.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.